Cultivator



Nov. 9, 1943. E. c. PHILLIPS 2,333,881

GULTIVATOR Filed July 15, 1943 2 Shets-Sheet 1 /J' I L j'm'x/a may Patented Nov. 9, 1943 ooL'mvAroR Emil .0. Phillips, oapeoimdeamivm. j i v Application July 15, ieisi seriai uoelegato 2 Claims.

This invention relates to a cultivator especially adapted for cultivating row crops, and has for the primary object the provision of a straddle row gang type cultivator mountable on a tractor and operable rearwardly thereof and is of a construction whereby the gangs may be easily and quickly adjusted transversely of the tractor by the operator of the latter to compensate for side slip of the tractor when operating on hillsides or slopes and thereby prevent covering or plowing out of the crops and also greatly facilitate the cultivating operation on curves.

With these'and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure l is a fragmentary side elevation, partly in section, illustrating a portion of a tractor equipped with a cultivator constructed in accordance with my invention.

Figure 2 is a fragmentary top plan view illustrating the same.

Figure 3 is a rear elevation illustrating the device applied to the tractor.

Figure 4 is a fragmentary longitudinal sectional view illustrating the control lever for shifting the position of the gangs of the cultivator.

Figure 5 is a perspective view illustrating one of the arms adaptable to the tractor for raising and lowering the cultivator.

Referring in detail to the drawings, the numeral 5 indicates a fragmentary portion of a tractor, 6 the drive or rear wheels thereof and I the rear axle housing. The tractor is equipped with a conventional type of hoist, a fragmentary portion thereof being indicated by the character 8.

In adapting the present invention to the tractor 5, pairs of brackets 9 are mounted on the rear face of the housing I and rotatably support shafts I0 each including a crank portion I l. The crank portions terminate in substantial alignment with the rear or drive wheels 6 of the tractor. The shafts are mounted for rotation and a limited sliding movement transversely of the tractor.

An arm I3 is secured to one end of one of the shafts and has a right angularly disposed portion l4 arranged substantially in alignment with the longitudinal axis of the tractor. The other shaft has secured thereto an arm l5 apertured to receive the arm I3, thereby connecting the shafts together. The crank portions ll and the portion M of the arm l3 have mounted thereon clevises 16 for connecting thereto cultivating elements or shovels ll of a conventional construction. The cultivating elements or shovels are grouped in pairs, as clearly shown'in Figure 3. The clevises l6 permit the pairs of shovel elements to be adjusted transversely of their support.

Arms 18 are secured to the shafts l0 and. are connected to bell crank levers l9 secured to the hoist device 8 of the tractor, one of the bell crank levers including diverging portions 20. The diverging portions 20 of one of the bell crank levers and the other bell crank lever are connected to the arms I8 by flexible elements 20 while the other diverging portions of one of the bell crank levers are connected to the arm l3 by a flexible element 2|. This construction permits the operator of the tractor through the manipulation of the hoist mechanism, to raise and lower the cultivating shovels with respect to the ground.

A quadrant 22 is mounted on the rear axle housing 1 and includes an extension 23 to which is pivotally mounted a control lever 24 having a detent 25 cooperating with the quadrant in releasably securing the control lever in different positions.

The control lever is located directly behind the operators seat of the tractor so as to be within convenient reach of the operator whereby the lever may be swung in either direction. The lower end of the lever is connected to the adjacent ends of the shafts ID by flexible elements 26. This construction permits the operator to easily and quickly adjust the shovel or cultivating elements transversely of the tractor for the purpose of compensating for side slip .of the tractor when operating on slopes or hillsides to prevent covering or plowing out of the crops and also to facilitate the cultivating of the crops on curves. The movement of the control lever in one direction will cause the cultivator elements to be shifted transversely in one direction and a reverse pivotal movement will cause the cultivating elements to be shifted transversely of the tractor in an opposite direction.

The control for the cultivator permits the adjustments described to be easily carried out while the tractor is in motion.

While I have shown and described the preferred embodiment of my invention, it will be 'uhdrstdbd that minor changes in construction,

ranton the tractor, a control lever plv'otally sup-, ported by the quadrant and-connected to the traction Wheels of the tractor, connected arms secured to said shafts, cultivating elements mounted on the crank portions and the con .15 to a hoist mechanism of the tractor, and a control mechanism carried by the tractor and connected to said shafts for shifting thereoifitransnected arms, and means for connectingthe shafts versely of the tractor.

v 2. In a cultivator, shafts arranged transversely and rearwardlyor a tractor, a hoist mechanism on the tractor, means for rotatably and slidably mounting the shafts on the tractor, said shafts including crank portions terminating rearwardly of and in substantial alignment with traction wheels of the tractor, arms connected to said shafts and to each other, cultivating elements carried by the I crank portions and one of said arms, a quadrant, means for mounting the quadshafts and including a detent for coacting with the quadrant whereby the shafts may be shifted transversely of the tractor. and means for con- 'necting the shafts to the hoist mechanism of. the tractor. 

